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|
# RSpec::Parameterized
# Sample
# plus
# [1, 2, 3]
# should do additions
# [5, 8, 13]
# should do additions
# [0, 0, 0]
# should do additions
describe RSpec::Parameterized do
describe "where and with_them" do
where(:a, :b, :answer) do
[
[1 , 2 , 3],
[5 , 8 , 13],
[0 , 0 , 0]
]
end
with_them do
it "should do additions" do
expect(a + b).to eq answer
end
end
with_them do
it "#{params[:a]} + #{params[:b]} == #{params[:answer]}" do
expect(a + b).to eq answer
end
end
with_them pending: "PENDING" do
it "should do additions" do
expect(a + b).to == answer
end
end
end
describe "lambda parameter" do
where(:a, :b, :answer) do
[
[1 , 2 , -> {should == 3}],
[5 , 8 , -> {should == 13}],
[0 , 0 , -> {should == 0}]
]
end
with_them do
subject {a + b}
it "should do additions" do
self.instance_exec(&answer)
end
end
end
describe "Hash arguments" do
where(a: [1, 3], b: [5, 7, 9], c: [2, 4])
with_them do
it "sums is even" do
expect(a + b + c).to be_even
end
end
end
describe "Verbose syntax" do
where do
{
"positive integers" => {
a: 1,
b: 2,
answer: 3,
},
"negative_integers" => {
a: -1,
b: -2,
answer: -3,
},
"mixed_integers" => {
a: 3,
b: -3,
answer: 0,
},
}
end
with_them do
it "should do additions" do
expect(a + b).to eq answer
end
it "should have custom name" do |example|
expect(example.metadata[:example_group][:description]).to eq case_name
end
end
context "lambda parameter" do
where do
{
"integers" => {
a: 1,
b: 2,
answer: -> {expect(subject).to eq 3},
},
"strings" => {
a: "hello ",
b: "world",
answer: -> {expect(subject).to include "lo wo"},
},
"arrays" => {
a: [1, 2, 3],
b: [4, 5, 6],
answer: -> {expect(subject.size).to eq 6}
}
}
end
with_them do
subject {a + b}
it "should do additions" do
self.instance_exec(&answer)
end
it "should have custom name" do |example|
expect(example.metadata[:example_group][:description]).to eq(case_name)
end
end
end
end
describe "Custom test case name" do
context "when regular arguments" do
where(:case_name, :a, :b, :answer) do
[
["positive integers", 6, 2, 8],
["negative integers", -1, -2, -3],
[ "mixed integers", -5, 3, -2],
]
end
with_them do
it "should do additions" do
expect(a + b).to eq answer
end
it "should have custom test name" do |example|
expect(example.metadata[:example_group][:description]).to eq case_name
end
end
end
context "when hash arguments" do
where(case_names: ->(a, b, c){"#{a} + #{b} + #{c}"}, a: [1, 3], b: [5, 7, 9], c: [2, 4])
with_them do
it "sum is even" do
expect(a + b + c).to be_even
end
it "should have custom names" do |example|
expect(example.metadata[:example_group][:description]).to include "+"
end
end
end
end
describe "ref" do
context 'simple usecase' do
let(:foo) { 1 }
where(:value, :answer) do
[
[ref(:foo), 1],
]
end
with_them do
it "let variable in same example group can be used" do
expect(value).to eq answer
end
context "override let varibale" do
let(:foo) { 3 }
it "can override let variable" do
expect(value).to eq 3
end
end
end
end
context "recursive usecase" do
let(:foo) { 1 }
where(:value, :answer) do
[
[[ref(:foo), 2], [1, 2]],
]
end
with_them do
it "let variable in same example group can be used" do
expect(value).to eq answer
end
context "override let varibale" do
let(:foo) { 3 }
it "can override let variable" do
expect(value).to eq [3, 2]
end
end
end
end
end
describe "lazy" do
context "simple usecase" do
let(:one) { 1 }
let(:four) { 4 }
where(:a, :b, :answer) do
[
[ref(:one), ref(:four), lazy { two + three }],
]
end
with_them do
context "define two and three after where block" do
let(:two) { 2 }
let(:three) { 3 }
it "should do additions" do
expect(a + b).to eq answer
end
end
end
end
context 'recursive usecase' do
let(:one) { 1 }
let(:four) { 4 }
where(:a, :b, :answer) do
[
[ref(:one), ref(:four), { result: lazy { two + three } }],
]
end
with_them do
context "define two and three after where block" do
let(:two) { 2 }
let(:three) { 3 }
it "should do additions" do
expect(a + b).to eq answer[:result]
end
end
end
end
context "have multibyte string usecase" do
context 'only in lazy' do
where(:value, :answer) do
[
["non multibyte parameter", lazy { "パラメータ is non multibyte parameter" }]
]
end
with_them do
it "should run with correct description" do
expect("パラメータ is #{value}").to eq answer
end
end
end
context 'with multibyte other parameter' do
where(:value, :answer) do
[
["lazyとは別のパラメータ", lazy { "パラメータ is lazyとは別のパラメータ" }]
]
end
with_them do
it "should run with correct description" do
expect("パラメータ is #{value}").to eq answer
end
end
end
context 'use マルチバイト in ancestor context description' do
where(:value, :answer) do
[
["non multibyte parameter", lazy { "パラメータ is non multibyte parameter"}]
]
end
with_them do
it "should run with correct description" do
expect("パラメータ is #{value}").to eq answer
end
end
end
end
end
context "when the where block is after with_them" do
with_them do
it "should do additions" do
expect(a + b).to eq answer
end
end
with_them do
subject { a }
it { should be_a Numeric }
end
where(:a, :b, :answer) do
[
[1 , 2 , 3],
[5 , 8 , 13],
[0 , 0 , 0]
]
end
end
context "when the where block is between with_thems" do
with_them do
it "should do additions" do
expect(a + b).to eq answer
end
end
where(:a, :b, :answer) do
[
[1 , 2 , 3],
[5 , 8 , 13],
[0 , 0 , 0]
]
end
with_them do
subject { a }
it { should be_a Numeric }
end
end
context "when the where has only one parameter to be set" do
where(:x) do
[1, 2, 3]
end
with_them do
it 'can take an array of elements' do
expect(x).to eq x
end
end
end
context "when the where has let variables, defined by parent example group" do
describe "parent (define let)" do
let(:five) { 5 }
let(:eight) { 8 }
describe "child 1" do
where(:a, :b, :answer) do
[
[1 , 2 , 3],
[five , eight , 13],
]
end
with_them do
it "a plus b is answer" do
expect(a + b).to eq answer
end
end
end
let(:eq_matcher) { eq(13) }
describe "child 3 (use matcher)" do
where(:a, :b, :matcher) do
[
[1 , 2 , eq(3) ],
[five , eight , eq_matcher],
]
end
with_them do
it "a plus b is answer" do
expect(a + b).to matcher
end
end
end
end
end
end
|
